ALM-12187 Failed to Expand Disk Partition Capacity

Alarm Description

The system checks the disk space every 60 seconds. When detecting that the disk space is expanded, the system expands disk partition. This alarm is generated when the disk partition fails to be expanded.

This alarm is cleared when the system detects that the disk partition is successfully expanded.

Alarm Attributes

Alarm ID	Alarm Severity	Auto Cleared
12187	Minor	Yes

Alarm Parameters

Parameter	Description
Source	Specifies the cluster or system for which the alarm is generated.
ServiceName	Specifies the service for which the alarm is generated.
RoleName	Specifies the role for which the alarm is generated.
HostName	Specifies the host for which the alarm is generated.
MountDirectoryName	Specifies the directory for which the alarm is generated.

Impact on the System

The expanded data disk space cannot be used to store data.

Possible Causes

The growpart scale-out tool is not installed.
The system fails to execute the command for expanding disk partition.

Handling Procedure

Check whether growpart is installed.

Log in to FusionInsight Manager, click O&M, and choose Alarm > Alarms to view the alarm details. In the Location column, check the name of the host and mount directory for which the alarm is generated. Click the host name to view its IP address.
Log in to the node for which the alarm is generated as user root.
Run the following command to check whether growpart is installed:

which growpart
If information similar to the following is displayed, the growpart tool is installed. Otherwise, contact O&M personnel to install the growpart tool.
```
[root@xxx ~]#which growpart
/usr/bin/growpart
```

Wait for 5 minutes, then choose O&M, and choose Alarm > Alarms on FusionInsight Manager. Check whether the alarm is cleared.
- If yes, no further action is required.
- If no, go to 5.

Run the disk partition expansion command.

Run the following command to view the disk and partition information:

lsblk

Search for the partition and the disk based on the mount directory name in the alarm location information, and check the disk and partition sizes.

In the following example, the mount directory is /srv/BigData/data1, the used disk is /dev/vdb, and the disk partition is /dev/vdb1.
Run the following command to expand the partition using growpart:

growpart Data disk Partition number

Run the following command:

growpart /dev/vdb 1

If information similar to the following is displayed, the execution is successful. If the execution fails, contact O&M personnel.
Run the following command to expand the file system size of the disk partition:

resize2fs Disk partition

Run the following command:

resize2fs /dev/vdb1

If information similar to the following is displayed, the execution is successful:
Wait for 5 minutes, click O&M, and choose Alarm > Alarms on FusionInsight Manager. Check whether the alarm is cleared.
- If yes, no further action is required.
- If no, contact O&M personnel.